57.True. It travels twice
the distance to travel as
horse B.
correct by circumference formula
C= 2pi*radius
58. True. When you have r and "theta" as integers,
you will end up with s being
a whole number. (see more on book pg. 353)
Incorrect
The angle sum of a triangle is 180 degrees which
correlates to PI radians. Since PI is an irrational number it is
impossible to add three integers to get an irrational number.
59.C
correct - conversion formula
60.D
incorrect ... answer is B
radian measure equals arc length divided by radius length
61.B
correct ... tough problem!
62. B
incorrect ... answer is C ... the change in the length of the radius has no effect on the angle measure.
the distance to travel as
horse B.
C= 2pi*radius
you will end up with s being
a whole number. (see more on book pg. 353)
The angle sum of a triangle is 180 degrees which
correlates to PI radians. Since PI is an irrational number it is
impossible to add three integers to get an irrational number.
radian measure equals arc length divided by radius length